Improve coverage of the X86 instruction set by adding 16-bit shift doubles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19687 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index 456c0b3..88e8338 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -225,6 +225,10 @@
     case X86::SHLD32rri8:return MakeMRIInst(X86::SHLD32mri8,FrameIndex, MI);
     case X86::SHRD32rrCL:return MakeMRInst( X86::SHRD32mrCL,FrameIndex, MI);
     case X86::SHRD32rri8:return MakeMRIInst(X86::SHRD32mri8,FrameIndex, MI);
+    case X86::SHLD16rrCL:return MakeMRInst( X86::SHLD16mrCL,FrameIndex, MI);
+    case X86::SHLD16rri8:return MakeMRIInst(X86::SHLD16mri8,FrameIndex, MI);
+    case X86::SHRD16rrCL:return MakeMRInst( X86::SHRD16mrCL,FrameIndex, MI);
+    case X86::SHRD16rri8:return MakeMRIInst(X86::SHRD16mri8,FrameIndex, MI);
     case X86::SETBr:     return MakeMInst( X86::SETBm,   FrameIndex, MI);
     case X86::SETAEr:    return MakeMInst( X86::SETAEm,  FrameIndex, MI);
     case X86::SETEr:     return MakeMInst( X86::SETEm,   FrameIndex, MI);